Movement: Left and Right arrow keys. Use inventory item: Z, X and C keys. There will be upward and downward direction indicators to show the character is going up or down

Concept: Life is short, you can die anytime, welcome to Heaven. 'Do you really want to leave your comfy bed' Inventory slots are limited, like your life. if you don't do it now, you're going to miss the other things in your life. so keep spamming your inventory slots, and hope for the best to get good items.